#include <stdio.h>
int main() {
    int w = 0, h = 0;
    double bmi = 0;
   while ((scanf("%d%d", &w, &h)) != EOF)
	{
        bmi = w/(h*h/10000.0);
        if (bmi< 18.5)
       {
          printf("Underweight\n");
       }
        else if (bmi >= 18.5 && bmi <= 23.9)
       {
           printf("Normal\n");
       }
        else if (bmi> 23.9 && bmi <= 27.9)
       {
           printf("Overweight\n");
       }
       else if (bmi > 27.9)
       {
           printf("Obese\n");
       }
    }
    return 0;
}
